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Finding the Fourth Proportional to 479,520,443.70, 719,280,665.55 and 479,520,443.70

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Solution

The fourth proportional to 479,520,443.70, 719,280,665.55 and 479,520,443.70 is: 719,280,665.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,520,443.70 : 719,280,665.55 = 479,520,443.70 : x
  2. Step 2: Convert to fraction form
    479,520,443.70/719,280,665.55 = 479,520,443.70/x
  3. Step 3: Cross multiply
    479,520,443.70x = 719,280,665.55 × 479,520,443.70
  4. Step 4: Simplify right side
    479,520,443.70x = 344,909,783,889,367,296
  5. Step 5: Solve for x
    x = 344,909,783,889,367,296/479,520,443.70
  6. Step 6: Final answer
    x = 719,280,665.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.